True, this could be improved. Note though that if you hover over the text entry box, there is a tool tip that says this: Name of the field. Must begin with an

True, this could be improved. Note though that if you hover over the text entry box, there is a tool tip that says this: Name of the field. Must begin with an uppercase letter followed by further letters, digits or underscore characters. Non-ASCII letters like German umlauts are not allowed.